function blockNotAllowed(parentID, children) {
    var parent = document.getElementById(parentID),
        content = parent.getElementsByTagName(children);
    for (var i = 0; i < content.length; i++) {
        var regex = /(^| |>)(anjing|setan|oot|tolol)(<| |$)/g,
            html = content[i].innerHTML;
        content[i].innerHTML = (regex.test(html)) ? '<del>' + html.replace(regex, "$1<mark>$2</mark>$3") + '</del><br><br>Kata-kata yang ditandai tidak boleh ada di dalam komentar.' : html;
    }
}
blockNotAllowed('comment-holder', 'p');